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Show 298 MR. W\ F. KlllBY ON NEW ODONATA. [May 21, AGRIONID,E. CALOPTEKYGINJE. Sapho pulchella, n. s AGRIONINiE. Tatocnemis (g. n.) malgassica, n. s Protosticta gracilis, n. s Lestes wallacei, n. s ORTHETRUM CAMARENSE. Exp. al. 22 millim.; long. corp. 49 millim. Male. Black, vertex metallic blue ; abdomen inflated at base, with the third segment pulverulent blue. Wings brownish hyaline : fore wings with 19 antenodal and 14 postnodal cross-nervures; the 3 first postnodals not continuous; triangle traversed by one or two cross-nervures; one supratriangular nervure ; 3 cells in the subtriangular space ; three rows of post-triangular cells, increasing, commencing on one side with four. Hind wings with 14 antenodal and 13-14 postnodal cross-nervures, the base tinged with smoky yellow, the membranule dark smoky brown, and a basal stripe of the same colour in the second costal space as far as the third cross-nervure, and another in the lower basal cell, shorter, and not extending to the base of the triangle, which is traversed, though there are no supra-triangular nervures on the hind wings. Tips of all the wings slightly clouded with brown beyond the pterostigma; appendages of 2nd segment large ; anal appendages black, about as long as the last two segments (the lower one as long as the others) and of the ordinary form. Pterostigma dark brown, covering 3 or 4 cells. Hab. Cameroons. Allied to 0. albistyla, Selys, from which the darker wings and black appendages will abundantly distinguish it. .-ETHRIAMANTA REZIA. Long. corp. 27 millim. ; exp. al. 50 millim. ; long. pter. 2 millim. Male. Size, shape, and neuration of the Indian JE. brevipennis, Ramb., except that the sectors of the arculus rise from a short but distinct stalk. The left fore uing has two cross-nervures instead of one in the lower basal cell, and the triangle of the right fore wing is traversed, and that of the left free. Body reddish above (probably bright red when living), pectus and pleura inclining to green, legs black, femora greenish beneath. Abdomen with the second and third segments carinated ; the dorsal carina black on the fourth and following segments. Anal appendages as long as the 8th segment ; lower appendage very broad, spatulate. Wings hvahne ; pterostigma olive, between black nervures; hind wings strongly and fore wings slightly tinged with yellow at the base; a dark streak in the lower basal cell, commencing beyond the base, and filling up about two fifths of the length of the cell. Hub. Madagascar. Cameroons. Madagascar. Menado, Celebes. Sarawak, Borneo. |